Improvement in springs for vehicles



T. R. TIM BY;

Springs for Vehicles.

Patented 'Feb. 25, 1873.

FIG.5.

INVENTOR: 1

WITNESSES:

N519 PnncsssJ UNITED STATES,

PATENT OFFICE.

THEODORE R. TIMBY, OF TARRYTOWN, NEW YORK.

' IMPROVEMENT IN SPRINGS FOR VEHICLES.

Specification forming part of Letters Patent No. 136,284, dated February25, 1873.

To all whom it may concern:

Be it known that I, THEODORE 1t. TIMBY, of Tarrytown, in the county ofWestchester and State of New York,have invented an Improved Rest orBearing for Springs, of which the following is a specification:

Nature and Objects of the Invention.

My invention relates to bearings for the ends of semi-elliptic or anyother form of springs whose ends receixe a horizontal sliding movementon their bearings when the spring is compressed. The objects of myinvention are to reduce frictional resistance to the movements of thespring and to guide the ends thereof, so as to keep them in properposition while permitting their free movement. To accomplish theseobjects I rest the ends of the spring on blocks rocking on suitablepivots, and controlled by gum or other cushions or springs, by which thesaid blocks are restored to their'central positions when relieved of theweight, so that they may always be ready for instantaneous action; and 1further provide a cap-plate, which, While serving to retain the rockingblock and its cushions or springs within their seat or chamber, servesalso as a guide for the end of the spring, as

hereinafter described.

General Description.

In the accompanying drawing, Figure 1 is a perspective view representingmy invention applied in connection with a bolster-sprin g for Vehicles.Fig. 2 is a plan or top view of the anti-friction bearing with a part ofthe capplate removed. Fig. 3 is a vertical section of the entire device,the line a: m, Fig. 2, indicating the plane of section. Figs. 4 and 5are, respectively, a plan view and section illustrating a modification.

A may represent a bed-plate or supportingbeam of any form, and B abolster supported above it by means of a spring, 0. Posts or standards DD may be employed to guide the bolster in a proper vertical path, andthese standards may be shouldered to serve as stops. Straps E E may alsobe employed to prevent the separation of the parts.

The above features do not constitute any essential part of my invention.

The ends of the spring 0 rest on rocking blocks F, which I prefer toconstruct as shown in Figs. 2 and 3, each of the said blocksapproximatin g in form to a segment of a cylinder, the are forming thebearing-surface for the spring. The entire lower edge of the rockingblock rests on the bed-plate, and it is formed with gudgeons ortrunnions f f, occupying hearings in the said bed-plate, and confined bythe cap G, through which the rocking block projects upward to receivethe'end of the spring. A flange, g, projecting upward-around three sidesof the cap prevents'the lateral displacement of the end of thespring. HH are cushions or springs of rubber or other material, which arecompressed as the rocking blocks F are deflected to either side, andsery e to restore the said blocks to their central positions whenrelieved of weight, so that they will be ready for instantaneous action.Spiral or other metallic springs may be substituted for the rubbercushions or springs H, it preferred.'

In Fig.2 one-half of the cap G is omittedto expose the cushions orsprings H and one of the trunnions F. My improved cap and.

guide G 9 may also be used. to advantage in connection withroller-bearings F, as illustaated in Figs. 4 and 5.

Claims. The following is claimed as new:

1. The combination of the rocking blocks F and cushions or springs H,arranged to operate substantially as and for the purposes herein setforth.

2. The combined cap and guide G y, constructed and applied substantiallyas and for the purposes specified.

THEODORE R. TIMBY.

Witnesses: OCTAVIUS KNIGHT, WALTE ALLEN.

